Shareholder Vote

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549   FORM 8-K   CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) May 15, 2025   Commission file number: 000-03134 PARK-OHIO HOLDINGS CORP. (Exact name of registrant as specified in its charter)   Ohio   34-1867219 (State or other jurisdiction of incorporation or organization)   (I.R.S. Employer Identification No.) 6065 Parkland Boulevard, Cleveland, Ohio   44124 (Address of principal executive offices)   (Zip Code) Registrant’s telephone number, including area code: ( 440 ) 947-2000 Not applicable (Former name or former address, if changed since last report.) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, Par Value $1.00 Per Share PKOH The NASDAQ Stock Market LLC Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2.): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934. ☐ Emerging growth company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨ 2 Item 5.07 Submission of Matters to a Vote of Security Holders. Park-Ohio Holdings Corp. (the “Company”) held its Annual Meeting of Shareholders on May 15, 2025. The final voting results for the proposals submitted for a vote of shareholders at the Annual Meeting of Shareholders are set forth below. Proposal 1. The shareholders elected Edward F. Crawford, John D. Grampa and Steven H. Rosen as directors of the Company to serve until the 2028 Annual Meeting of Shareholders. The voting results were as follows: Director Nominee For Withheld Broker Non-Vote Edward F. Crawford 10,667,261 920,491 696,205 John D. Grampa 10,732,970 854,782 696,205 Steven H. Rosen 10,301,516 1,286,236 696,205 Proposal 2. The shareholders approved the Amendment and Restatement of the Park-Ohio Holdings Corp. 2021 Equity and Incentive Compensation Plan. The voting results were as follows: For   Against   Abstain Broker Non-Vote 9,509,137 2,049,559 29,056 696,205 Proposal 3. The shareholders approved the ratification of the appointment of Ernst & Young LLP as the Company’s independent public accounting firm for 2025. The voting results were as follows: For   Against   Abstain 12,154,280 128,764 913 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.       Park-Ohio Holdings Corp. (Registrant) Dated: May 15, 2025   /s/ Robert D. Vilsack   Robert D. Vilsack   Chief Legal and Administrative Officer, Corporate Secretary 4